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Post-Quantum Migration Readiness in Federal Digital Services

The migration of public sector digital infrastructure to post-quantum cryptography represents a foundational governance and engineering challenge. This study examines organizational readiness frameworks, structural dependencies, and lifecycle governance models required to secure federal digital services against quantum computational threats. By analysing lifecycle architectures and jurisdictional transition equity, the research defines systemic pathways for achieving cryptographic agility across public institutions.

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PhD Dissertation

Degree:
Post-Quantum Migration Readiness in Federal Digital Services

Author:

Group

First M. Last

Advisor:

Dr. First Last

City, 2026

Contents

Abstract
Introduction
Chapter 1. Theoretical Foundations of Post-Quantum Cryptography and Digital Governance
1.1 Classical Public-Key Cryptosystems and Asymmetric Vulnerabilities
1.2 Post-Quantum Cryptographic Primitives and Standardisation Paradigms
1.3 Public Sector Cyber Agility and Institutional Transition Theories
1.4 Threat Horizons: Disentangling Harvest-Now-Decrypt-Later from Active Tampering
Chapter 2. Methodological Architecture for Public Sector Cryptographic Assessment
2.1 Comparative Review Protocols for Cryptographic Lifecycle Models
2.3 Sub-Federal Dependency Mapping and Supply Chain Concentration Analytics
2.4 Qualitative Alignment Matrices and Instrument Validation Criteria
Chapter 3. Governance Structures, Policy Frameworks, and Lifecycle Models
3.1 Evaluating Discovery-First versus Governance-Oriented Migration Frameworks
3.2 Inter-Departmental Coordination and Capital Allocation Mechanisms
3.3 Standardisation Impact: Integration of NIST FIPS Guidelines in Federal Systems
3.4 Regulatory Mandates versus Voluntary Guidance in Digital Service Protection
Chapter 4. Technical Migration Diagnostics in Critical Infrastructure and Digital Delivery
4.1 Cryptographic Agility in Legacy Operational Technology and Embedded Assets
4.2 Shared Vendor Concentration and Systemic Dependency Overlays
4.3 Infrastructure Vulnerabilities in Authoritative Domain Name Systems and Web Endpoints
4.4 Protocol Retrofitting in Citizen-Facing Digital Platforms
Chapter 5. Empirical Analysis of Organizational and Jurisdictional Transition Gaps
5.1 Assessment of Public Sector Readiness Across Core Organisational Dimensions
5.3 Operational Bottlenecks in Algorithm Migration across Critical Federal Services
5.4 Institutional Barriers to Cross-Functional Executive Engagement
Chapter 6. Strategic Recommendations and Long-Term Migration Roadmap
6.1 Phased Implementation Schedules for Confidentiality and Integrity Safeguards
6.3 Continuous Monitoring, Auditing, and Cryptographic Governance Evolution
Conclusion
Bibliography

Introduction

The rapid development of quantum computing capabilities introduces unprecedented structural vulnerabilities to modern cryptographic infrastructures, threatening the foundational public-key mechanisms that protect national digital services [3]. Within federal governance systems, citizen-facing platforms, operational technologies, and sovereign data repositories face acute systemic exposure from quantum algorithmic attacks [1]. Consequently, transitioning public administrative architectures toward quantum-resistant standards constitutes an urgent national security and institutional imperative [6].

Existing scholarship and regulatory bodies have focused extensively on the mathematical and technical standardisation of post-quantum cryptographic primitives, yet operational mechanisms for organizational deployment across complex federal networks remain fragmented [1]. Current institutional models exhibit substantial blind spots concerning lifecycle sequencing, inter-departmental governance, and the socio-technical dependencies linking federal digital services to sub-federal systems [2, 6]. Without unified readiness metrics and systematic capability assessments, federal digital services face operational bottlenecks and critical transition inequities [2].

This dissertation investigates the structural, methodological, and governance mechanisms required to measure and operationalise post-quantum cryptographic readiness within federal digital environments. Employing a comparative analysis of institutional lifecycle frameworks, readiness assessment instruments, and supply chain concentration metrics, this study establishes a comprehensive diagnostic framework [1, 6]. The ultimate goal is to provide a validated conceptual and operational model that guides public-sector stakeholders through the multi-phase deployment of quantum-resilient infrastructure [1, 2, 6].

2.2 Multi-Dimensional Capability and Readiness Scoring Dimensions

Evaluating public-sector preparedness for post-quantum cryptographic migration requires a robust methodological architecture that couples organizational capacity metrics with rigorous lifecycle evaluation. Technical discovery models often catalog cryptographic assets without establishing the operational governance structures required to implement systematic algorithmic transitions. To resolve this structural limitation, the proposed evaluation framework incorporates the scoring architecture established by the Post-Quantum Cryptography Organizational Readiness Instrument (PQC-ORI), which operationalizes six core dimensions: Cryptographic Awareness, Governance and Policy, Migration Management, Technical Capability, Cryptographic Agility, and Operational Resilience across a five-level maturity model (crossref-10-35760-ik-2026-v31i1-325). To ensure analytical validity across complex federal digital services, these internal maturity indicators are cross-evaluated against the five-dimension comparative lifecycle framework articulated in public-sector transition analyses (crossref-10-2139-ssrn-6833360). This scoring paradigm systematically assesses governance orientation, sequence dependency management, risk and opportunity management, resource and capability management, and threat-horizon differentiation across eighteen published lifecycle models (crossref-10-2139-ssrn-6833360). By synthesizing the six organizational readiness dimensions of PQC-ORI (crossref-10-35760-ik-2026-v31i1-325) with comparative lifecycle assessment metrics, the research methodology establishes a standardized protocol for identifying institutional transition bottlenecks. This integrated diagnostic framework enables researchers and digital service administrators to differentiate policy formulation from operational execution, ensuring that strategic capital allocation mechanisms target structural vulnerabilities, governance gaps, and cross-functional administrative deficits. Consequently, the research design provides a rigorous, replicable evaluation matrix capable of empirically assessing cryptographic migration readiness across interconnected public sector digital delivery systems.

References

  1. Development and Preliminary Validation of PQC-ORI: A Public-Sector Readiness Assessment Instrument for Post-Quantum Cryptography
    Fadlilah Izzatus Sabila, Fauziah
    Lien DOI
  2. The PQC Transition Equity Index A Capacity-Adjusted Allocation Instrument for Sub-Federal Post-Quantum Migration
    Imane Errayes
    Lien DOI
  3. Quantum - Safe Cryptography: Exploring the Future of Cybersecurity in the Post - Quantum Era
    Pavleen Kour
    Lien DOI
  4. Quantum-Safe Cryptography: Navigating the Future of Cybersecurity in the Post-Quantum Era
    Jayasudha Yedalla
  5. Post-Quantum Cryptography (PQC) Network Instrument: Measuring PQC Adoption Rates and Identifying Migration Pathways
    Jakub Sowa, Bach Hoang, Advaith Yeluru et al.
  6. Governance Before Discovery: A Systematic Comparative Review of Post-quantum Cryptography (PQC) Lifecycle Models
    Tim D. Williams
  7. A technical perspective on post-quantum cryptography (PQC) algorithms for the quantum era
    Pethuru Raj Chelliah, Rajesh Kumar Sharma
  8. 15 Post-quantum cryptography for the detection of injection attacks in small-scale networks
    Annapantula Sudhakar, G. R. S. Murthy, S. Thirukumaran

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